This is the Linux app named OpenSOC86 whose latest release can be downloaded as OSOC86_140922.rar. It can be run online in the free hosting provider OnWorks for workstations.
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OpenSOC86
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DESCRIPTION
OpenSOC86 is an open implementation of the x86 architecture in Verilog. The current version only implements the 16-bit part (real mode). The processor is a pipelined architecture clocked at 100 MHz in a Cyclone II speed grade -6. Therefore it can be seen as similar to a 486 in real mode.
Several peripherals are also implemented in a somewhat minimalistic way, but enough to be able to boot an IBM PCXT compatible bios and MSDOS 6.22. The current implementation is only proven to boot the bios and DOS in simulation. The system is targeted to run on the DE2-70 board. In order to run the system in hardware a SDRAM and SRAM controller need to be added. These are currently in development.
Features
- 8086 instruction set
- 100 MHz Fmax in Cyclone II speed grade -6
- Pipelined execution of register to register instructions
- Boots IBM PCXT compatible bios and MSDOS 6.22
- I8237, I8253, I8259, I8272, CGA controllers
Audience
Information Technology, Developers, Engineering
Programming Language
VHDL/Verilog
This is an application that can also be fetched from https://sourceforge.net/projects/opensoc86/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.
